Claus Lehmann publishes P2P-Banking.com and P2P-Kredite.com since 2007. P2P-Banking.com focuses on industry news about p2p lending. P2P-Kredite.com is the largest German language information resource on p2p lending frequented by German, Austrian and Swiss investors.

Claus Lehmann and his sites have been cited by the Financial Times, Wall Street Journal, Finanztest, German TV, Dagensit Norway, Deutsche Bank research and many other financial and mainstream publications.